Optical enlargement variation system e.g. for operations microscope, has positioning device for third module which has given first spacing from first module in first working state

摘要

An optical image enlargement system has three optical modules (D1,D5,D4) in the enlargement variation system. And a first module (D1) has a fixed spacing (K) from a second module (D5) and a third module (D4) is between first and second modules (D1,D5).The enlargement variation system has a positioning device (G) for the third module (D4) arranged with a given first spacing (K1) from the first module (D1) in a first of the two working states. An independent claim is included for a microscope having an objective system and an imaging system.